[policy][rest-to-soap] Can not save the form after updating prefill soap envelope in some case

[leleueri]

Expected Behavior

Editing a policy field containing some data should enable the Save button

Current Behavior

Editing a policy field containing some data doesn't always enable the Save button

Possible Solution

export.zip

Steps to Reproduce (for bugs)

1. Go to the design view of your api
2. Select a existing Rest-to-Soap policy
3. Try to edit multiple time a field containing some data (like envelope)
4. The "Save" button is disabled
5. Edit the Charset field
6. Now the Save button is enabled

[aelamrani]

Due to the definition which contains invalid data: charset to null instead of ""

[aelamrani]

Seems to be an issue as the behavior has changed since the 1.30 and now we get this kind of error when we have null on a string value of a policy:

Example:

            {
                "methods": [
                    "GET"
                ],
                "mock": {
                    "status": "200",
                    "headers": [
                        {
                            "name": "Content-Type",
                            "value": "application/json"
                        }
                    ],
                    "content": null
                },
                "description": "Get all instances of entity",
                "enabled": false
            }

{
  "message" : "Invalid policy configuration : instance type (null) does not match any allowed primitive type (allowed: [\"string\"])",
  "http_status" : 400
}

Note: we cannot get this kind of configuration from the UI but with an external tool or a template.

[aelamrani]

Getting also:

Invalid policy configuration : instance type (null) does not match any allowed primitive type (allowed: ["array"])

[leleueri]

Note: In the schema-form.json to authorize null as value for optional field, use the syntax

•  ` "type" : ["<expected-type>", "null"]`
  

ex :

   "headers" : {
      "type" : ["array", "null"],
      "title": "Headers",
      ...